[v2] hw, target: Prefer fast cpu_env() over slower CPU QOM cast macro

[PATCH v2 06/23] target/avr: Prefer fast cpu_env() over slower CPU QOM cast macro

Philippe Mathieu-Daudé posted 23 patches 10 months ago

Diff against v1 v3
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Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Eduardo Habkost <eduardo@habkost.net>, Stefano Stabellini <sstabellini@kernel.org>, Anthony Perard <anthony.perard@citrix.com>, Paul Durrant <paul@xen.org>, Peter Maydell <peter.maydell@linaro.org>, "Cédric Le Goater" <clg@kaod.org>, Nicholas Piggin <npiggin@gmail.com>, "Frédéric Barrat" <fbarrat@linux.ibm.com>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Harsh Prateek Bora <harshpb@linux.ibm.com>, Igor Mammedov <imammedo@redhat.com>, Ani Sinha <anisinha@redhat.com>, Laurent Vivier <laurent@vivier.eu>, Alexander Graf <agraf@csgraf.de>, Michael Rolnik <mrolnik@gmail.com>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Cameron Esfahani <dirty@apple.com>, Roman Bolshakov <rbolshakov@ddn.com>, Marcelo Tosatti <mtosatti@redhat.com>, David Woodhouse <dwmw2@infradead.org>, Reinoud Zandijk <reinoud@netbsd.org>, Sunil Muthuswamy <sunilmut@microsoft.com>, Song Gao <gaosong@loongson.cn>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Aurelien Jarno <aurelien@aurel32.net>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Huacai Chen <chenhuacai@kernel.org>, Chris Wulff <crwulff@gmail.com>, Marek Vasut <marex@denx.de>, Stafford Horne <shorne@gmail.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Weiwei Li <liwei1518@gmail.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, Thomas Huth <thuth@redhat.com>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Max Filippov <jcmvbkbc@gmail.com>

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[PATCH v2 06/23] target/avr: Prefer fast cpu_env() over slower CPU QOM cast macro

Posted by Philippe Mathieu-Daudé 10 months ago

Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/avr/cpu.c     | 27 +++++++--------------------
 target/avr/gdbstub.c |  6 ++----
 target/avr/helper.c  | 10 +++-------
 3 files changed, 12 insertions(+), 31 deletions(-)

diff --git a/target/avr/cpu.c b/target/avr/cpu.c
index f5cbdc4a8c..2ad24373a8 100644
--- a/target/avr/cpu.c
+++ b/target/avr/cpu.c
@@ -43,31 +43,22 @@ static vaddr avr_cpu_get_pc(CPUState *cs)
 
 static bool avr_cpu_has_work(CPUState *cs)
 {
-    AVRCPU *cpu = AVR_CPU(cs);
-    CPUAVRState *env = &cpu->env;
-
     return (cs->interrupt_request & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_RESET))
-            && cpu_interrupts_enabled(env);
+            && cpu_interrupts_enabled(cpu_env(cs));
 }
 
 static void avr_cpu_synchronize_from_tb(CPUState *cs,
                                         const TranslationBlock *tb)
 {
-    AVRCPU *cpu = AVR_CPU(cs);
-    CPUAVRState *env = &cpu->env;
-
     tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL));
-    env->pc_w = tb->pc / 2; /* internally PC points to words */
+    cpu_env(cs)->pc_w = tb->pc / 2; /* internally PC points to words */
 }
 
 static void avr_restore_state_to_opc(CPUState *cs,
                                      const TranslationBlock *tb,
                                      const uint64_t *data)
 {
-    AVRCPU *cpu = AVR_CPU(cs);
-    CPUAVRState *env = &cpu->env;
-
-    env->pc_w = data[0];
+    cpu_env(cs)->pc_w = data[0];
 }
 
 static void avr_cpu_reset_hold(Object *obj)
@@ -165,8 +156,7 @@ static ObjectClass *avr_cpu_class_by_name(const char *cpu_model)
 
 static void avr_cpu_dump_state(CPUState *cs, FILE *f, int flags)
 {
-    AVRCPU *cpu = AVR_CPU(cs);
-    CPUAVRState *env = &cpu->env;
+    CPUAVRState *env = cpu_env(cs);
     int i;
 
     qemu_fprintf(f, "\n");
@@ -276,8 +266,7 @@ static void avr_cpu_class_init(ObjectClass *oc, void *data)
  */
 static void avr_avr5_initfn(Object *obj)
 {
-    AVRCPU *cpu = AVR_CPU(obj);
-    CPUAVRState *env = &cpu->env;
+    CPUAVRState *env = cpu_env(CPU(obj));
 
     set_avr_feature(env, AVR_FEATURE_LPM);
     set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
@@ -305,8 +294,7 @@ static void avr_avr5_initfn(Object *obj)
  */
 static void avr_avr51_initfn(Object *obj)
 {
-    AVRCPU *cpu = AVR_CPU(obj);
-    CPUAVRState *env = &cpu->env;
+    CPUAVRState *env = cpu_env(CPU(obj));
 
     set_avr_feature(env, AVR_FEATURE_LPM);
     set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
@@ -335,8 +323,7 @@ static void avr_avr51_initfn(Object *obj)
  */
 static void avr_avr6_initfn(Object *obj)
 {
-    AVRCPU *cpu = AVR_CPU(obj);
-    CPUAVRState *env = &cpu->env;
+    CPUAVRState *env = cpu_env(CPU(obj));
 
     set_avr_feature(env, AVR_FEATURE_LPM);
     set_avr_feature(env, AVR_FEATURE_IJMP_ICALL);
diff --git a/target/avr/gdbstub.c b/target/avr/gdbstub.c
index 150344d8b9..2eeee2bf4e 100644
--- a/target/avr/gdbstub.c
+++ b/target/avr/gdbstub.c
@@ -23,8 +23,7 @@
 
 int avr_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
 {
-    AVRCPU *cpu = AVR_CPU(cs);
-    CPUAVRState *env = &cpu->env;
+    CPUAVRState *env = cpu_env(cs);
 
     /*  R */
     if (n < 32) {
@@ -53,8 +52,7 @@ int avr_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
 
 int avr_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
 {
-    AVRCPU *cpu = AVR_CPU(cs);
-    CPUAVRState *env = &cpu->env;
+    CPUAVRState *env = cpu_env(cs);
 
     /*  R */
     if (n < 32) {
diff --git a/target/avr/helper.c b/target/avr/helper.c
index fdc9884ea0..eeca415c43 100644
--- a/target/avr/helper.c
+++ b/target/avr/helper.c
@@ -30,8 +30,7 @@
 
 bool avr_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
 {
-    AVRCPU *cpu = AVR_CPU(cs);
-    CPUAVRState *env = &cpu->env;
+    CPUAVRState *env = cpu_env(cs);
 
     /*
      * We cannot separate a skip from the next instruction,
@@ -69,8 +68,7 @@ bool avr_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
 
 void avr_cpu_do_interrupt(CPUState *cs)
 {
-    AVRCPU *cpu = AVR_CPU(cs);
-    CPUAVRState *env = &cpu->env;
+    CPUAVRState *env = cpu_env(cs);
 
     uint32_t ret = env->pc_w;
     int vector = 0;
@@ -144,9 +142,7 @@ bool avr_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
             if (probe) {
                 page_size = 1;
             } else {
-                AVRCPU *cpu = AVR_CPU(cs);
-                CPUAVRState *env = &cpu->env;
-                env->fullacc = 1;
+                cpu_env(cs)->fullacc = 1;
                 cpu_loop_exit_restore(cs, retaddr);
             }
         }
-- 
2.41.0

Re: [PATCH v2 06/23] target/avr: Prefer fast cpu_env() over slower CPU QOM cast macro

Posted by Richard Henderson 10 months ago

On 1/27/24 08:03, Philippe Mathieu-Daudé wrote:
> Mechanical patch produced running the command documented
> in scripts/coccinelle/cpu_env.cocci_template header.
> 
> Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org>
> ---
>   target/avr/cpu.c     | 27 +++++++--------------------
>   target/avr/gdbstub.c |  6 ++----
>   target/avr/helper.c  | 10 +++-------
>   3 files changed, 12 insertions(+), 31 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~